Quarterly report pursuant to Section 13 or 15(d)

SUBSEQUENT EVENTS - Schedule of Post-Closing Capitalization (Detail)

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SUBSEQUENT EVENTS - Schedule of Post-Closing Capitalization (Detail) - Subsequent Event [Member] - Markforged Holding Corporation [Member]
Jul. 14, 2021
shares
Schedule of Capitalization [Line Items]  
Shares of New Common Stock outstanding 185,251,837
Shares of New Common Stock subject to outstanding New Warrants (of which 3,150,000 are in respect of private placement warrants held by Sponsor) 8,524,984
Shares of New Common Stock subject to outstanding options and RSUs under the Markforged Holding Corporation 2021 Stock Option and Incentive Plan (the "2021 Plan") 18,434,577
Total outstanding equity at closing, including vested and unvested options and RSUs 212,211,398
Shares of New Common Stock reserved for issuance under the 2021 Plan 24,065,423
Markforged Earnout Shares and Earnout RSUs [Member]  
Schedule of Capitalization [Line Items]  
Shares of New Common Stock reserved for issuance under the 2021 Plan 14,666,667
Markforged Holding Corporation 2021 Employee Stock Purchase Plan [Member]  
Schedule of Capitalization [Line Items]  
Shares of New Common Stock reserved for issuance under the 2021 Plan 4,700,000